Liquid-soap dispenser.



DUNN.

AI DISPENSER.

T. J. LIQUID S0 APPLICATION I I 982,768. Patented Jan. 24,1911.

2 SHEETS-SHEET 1.

T. J. DUNN.

LIQUID SOAP DISPENSER. 1

APPLIOA'HOH FILED I'BBJII, 1810. 982,768. Patented Jan. 24, 1911.

' 2 SHEETS-B11331 2.

QN 5 mi 4 1 v! v I 1 w In m Q w Invent: o1". T.J. D urin.

A VIIIIQII rllllflll STATES PATENT OFFICE.

THOMAS J. DUNN, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR '10 J. S. MOANANY, OF SAN FRANCISCO, CALIFORNIA.

manna-soar DISPENSER.

. Specification of Letterslatent.

Patented Jan. 24,1911.

Application filed February 21, 1910. Serial No. 545,208.

To all whom it may conccm:

Be it known that I, THOMAS J. DUNN, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented a new and useful Liquid-Soap Dispenser, of which the following is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to a liquid dispenser,

and its object is to deliver any redeter mined quantity of liquid soap or ot er fluid compounds to a person desiring to use the same.

An object of the invention is to prevent the'waste of the material delivered by the device, to produce a device which maybe readily refilled with the li uid when empty, and which will not leak eit er at the supply tank or at the delivery nozzle.

A further object. of the invention is to produce a dispensin device which will dispense more or less 0 a predetermined quantity of liquid as maybe desired, at the will,

of the user. 'In the-drawings, in which the same numeral of reference is applied tothe same portion throughout the several views, Fig ure 1.is afront view of the dis nsing apparatus; Fig. 2 is a vertical sectional view of the device, with a portiofi of the supporting standa 6, broken awayfthe apparatus being shown 'n the position of discharging a small quantity of liquid therefrom:, and Fig.3 is

a vertical sectional view of the device in its normal condition. Fig. 4 is a longitudinal sectional view? of the liquid feed plunger, illustrating the manner of adjusting the same.

The numeral 1 represents a support for the liquid-holding rece tacle 2, sa1 receptacle comprising a globe aving a neck 3 which 'is withdrawn tors therein held to the upper portion 5 of the arm 1 by means'of cement 4.. The globe is provided with a screw cap-6 which has an air opening 7 therein in order that the liquidmay be from the receptacle. The arm 1 has an opening of three difierent diamefirst, the large portion 8; sec- 0nd, a smaller portion 9; and third, a very small portion 10. Leading from theupper portion 5, of the arm 1 isa passage 11, said quantity of liquid desired.

passage leading into the neck of the receptacle. Slidable in the'hole 9 is a lun er 13 having a small shank 14, which shdes 1n the small hole 10, said shank 14 bein surrounded by a spring 15 to hold the p unger normally in the position shown in Fig. 3, and to prevent said springfrom pushing said plunger out of that position, a plate 16 is inserted in the hole 8, said plate being held in place therein b 'means of a tube 17,

said tube being threa ed at its outer end, and having an opening to correspond with the openingthrough the portion 5 of the arm 1. '1 is tube contains a plunger 18, which is normally held in the posltion shown in Fig. 3 by means of a spring 19, w ich is pushed into the position shown in Fig. 2 by means of a rod 20 having a button 21 thereon. This rod 20 is adjustable in the plunger 18 by means of a threaded head 22, said head providing the means whereby the stroke of the piston may be varied in its total throw.

The operation of the device is as follows: The button 21 is pushed u against the end of the tube in WhlCh it sli es, and the pressure of the plunger 18 on the body of liquid pushes it through the/hole in the plate 16;

and the pressure of the liquid pushes the plunger 13 back enough to uncover the opening 12, causing the iquid to be projected therefrom. Since the rod 20 is movable with respect to the iston 18, and since the length of that red etermines the stroke of the plunger, the quantity of material ejected from the device may be varied by'changing the position of the head 22 with respect to ,the plunger 18, since when it is in the bottom of the opening in which it is threaded,

the stroke of the piston 18 will be short, while if it is near the mouth of said opemng in the piston 18, the stroke will be much longer, thus measuring the predetermined of theplungers13 and 18. cause a small, quantityoftheliquid to be forced from the the passage 12. The spring 19 is heavy enough to cause the return of the plunger 17 and form a vacuum in thechamberwithin the tube until the opening 11 is uncovered,

at which time the chamber will be forcibly filled with a fresh charge of liquid.

The advantage of this construction is that very still or viscous liquids can be easily handled by the device. The particular ne-' cessity for this lies in the fact that soap, the substance most frequently handled by such a device as this often becomes quite stifi and viscous about the dischargeopenings. Another advantage of this construction is that a great pressure may be exerted on the material in front of the plunger 18 to expel it from the dispenser;

It will be noted that the operating parts of this dispenser are all assembled from the front, and may be readily taken out Without disturbing the connection of the arm with the wall-to which it is secured.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent\of the United States, is as follows c q 1. In a liquld dlspenser, an-arm having two communicatlng chambers therein, a

plunger 1n each of sald chambers, meansextending from one of said plunge'rs to the? outside ofthe device, and adapted to manually move the plunger, and a liquid soap receptacle having communication'with the chamber surrounding said manually movable pluriger, said chambered arm having openings whereby material maybe ejected from the chambers upon the movement of said plungers as described:

2. In a-liquid dispenser, an arm having' two communicating chambers therein, a spring pressed plunger in each of said chambers, a plate having an opening therein, and' against which one of said plungers 1s normally seated, a receptacle having a passage communicating with the other ofsaid chambers, and a rod connected with the plunger in, the latter chamber and extending outside the device, whereby said plunber may be manually moved, as set forth.

-3.- In a liquid dispenser, an arm having two communicating chambers therein, a soap receptacle having an opening into one of said chambers, said arm also having an opening from the other of said chambers into and through a spout carried thereby,

a spring pressed plunger in the latter of,

said chambers, a plate adapted to hold said spring pressed plunger normally over-the opening into said spout, a spring pressed plunger in the chamber ,opening into the liquid receptacle, and manual'means'for operating, the last-mentioned plunger, asset forth, 4

4. In a liquid dispenser, anarm having two communicating chambers therein, a spout having an opening into one of said chambers and carried by said arm, a plunger in one of said chambers and adapted to cover the opening into the spout, a plate having an opening therein and adapted to hold said plunger over the opening into said spout, and a manually movable spring" pressed plunger in the other ,chamber and a liquid receptacle having an opening into the last mentioned chamber, substantiallyas set forth.

5. .In a liquil dispenser, an arm having ,tw'o communicating chambers therein and having an'opening from one of said chambers into a spout carried by said arm, 5a. v

spring pressed plunger in o of said ch'am bers to cover the opening in 0 said spout, a plate having an opening therein to 'hold 'said plunger. over the opening into said spout, atube in the other chamber and having an opening therein, a spring pressed plunger in said tube, manual means for moving said plunger, and a liquid receptacle secured to said arm and'havlng communi: cation with gsaid tube, through openin s in said arm and insaid'tube,substantia y as described.--

6; In a fluid dispenser, a liquid supply receptacle, an'arm having a spout and sup: porting said receptacle, said arm also having two communicating chambers therein, an opening from one chamber to the'liquid sup-C ply, and an openirig from the other chamber to the spout, a plate having a small opening therein and forming a partition between the two chambers, a spring pressed plunger in one of the chambers and adapted'to leave:

the opening into the liquid supply, normally open, a spring ressed plunger in the other chamber anda apted to normally close the discharge opening and the opening in said plate and/means tontanually operate the first-named plunger, asset forth.-

, 7. In a fluid dispenser, a liquld'supply receptacle, an arm having a spout and supporting'said receptacle, said arm also hav-v mg two communicating chambers therem,

an opening from one chamber to the liquid 12 supply, and an opening from the other. chamber to the spou t, a plate having a small opening therein and forming a partition between the two chambers, a spring lpressed plunger in one ofthe chambers and adapted 1i to leave the opening intothe liquid. supply i normally open, .a' spring pressed plunger in 1910 in the presence vof the two subscribed the other chamber and adapted to' normally witnesses.

close .the discharge 0 ening and the opening in said plate, and adustable means to man- THOMAS DUNN ually move the first-named plunger. Witnesses:

In testimony whereof I have hereunto set C. P. GRIFFIN,

my hand this 15th day of Janua-ry A. D. R. P. Booms. 

